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Buscador de normas

Buscador de normas

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Número de resultados: 30

ASTM
Active
2024-02-15

Standard Guide for Sampling and Analysis of Residential and Commercial Water Supply Wells in Areas of Exploration and Production (E&P) Operations

ASTM
Active
2023-04-01

Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry

ASTM
Active
2020-07-01

Standard Test Method for Determination of Manganese in Manganese Ores by Pyrophosphate Complexed Permanganate Potentiometric Titrimetry

UNE
Vigente
1985-03-15

Bulonado. Arandelas.

UNE
Vigente
1985-01-15

Bulonado. Placas de base.

ISO
PUBLISHED
1991-01-24

Rock drilling equipment — Hollow drill steels in bar form, hexagonal and round

ISO
PUBLISHED
1989-08-17

Chromium ores — Increment sampling

ISO
PUBLISHED
1989-08-17

Chromium ores — Preparation of samples

ISO
PUBLISHED
1988-02-04

Chromium ores and concentrates — Determination of aluminium content — Complexometric method

ISO
PUBLISHED
1985-11-07

Chromium ores — Determination of total iron content — Titrimetric method after reduction

ISO
PUBLISHED
1984-11-01

Chromium ores and concentrates — Determination of silicon content — Molecular absorption spectrometric method and gravimetric method

ISO
PUBLISHED
1983-11-01

Chromium ores and concentrates — Determination of chromium content — Titrimetric method

Número de resultados: 30